Suction element and suction ventilator for automobiles



July 10, 1928.

J. H; LUTZ SUCTION ELEMENT AND SUCTION VENTILATOR FOR AUTOMOBILES Filed Oct. 26, 1925 .2 s eets-sheet Tim: \IIII I II I/ ll l INVENTOR JIM/us fl/arz Y I O 5 ATTORNEY July 10, 1928.

J. H. LUTZ SUCTION ELEMENT AND SUCTION VENTILATOR FOR AUTOMOBILES Filed Oct. 26, 1923 2 Sheets-Sheet 2 mvlzmoa Jul/us 1% 072 'Patented July 10, 1928.

JULIUS H. L'UTZ, OF NEW YQBK, N. Y.

sucrron ELEMENT AND SUCTION vnn'rrnaron r012. AUTOMOBILES.

Application filed October 26, 1923. Serial No, 670,895. I

This invention relates to improvements insuction elements and suction ventilators forautomobiles.

One of the objects of this invention is to utilize the movin exhaust gases of an engine, and particularly the exhaust gases of an automobile explosive engine for the purpose of inducing a suction of air in a suction element which may be utilized for the ventilation of the closed bodies of cars driv en by such'explosive engines.

Another object of my invention is toroduce a ventilator for. closed automo ile bodies which may be operated to draw or suck air from the interior of the car body by means of air-suction induced bythe move- 7 ment of the exhaust gases from the engine and without in any way affecting, consuming or reducing the normal power of the enne. Another object of my invention is to produce a ventilating device which ma be readily attached to the exhaust pipe 0 an automobile and which may be installed in a car body without the necessity of building in. Another object of my invention is to produce a ventilator of the type specified in which the air-suction induced in a conduit or channel by the movement of the exhaust gases from the engine will automatically open a valve to permitthe suction through such conduit of air from the interior ofthe closed car, and which valve will be normally retained in closed position to prevent the entrance or reverse movement of air or gases through said ventilator conduit or channel.

Another object of my invention is to provide a suction element ,for ventilators in combination with .a flexible conduit commembers and arrangement of parts so com-' bined as to ,co-act and cooperate with each other in the performance of the functions and'the accomplishment of the results herein contemplated, and comprises in one of its adaptations the species or preferred form illlpstrated in the accompanying drawings, in w ich:--

Fig. 1 is a side elevation of anai tomobile showing an installation ofv my improved ventilating apparatus with my suction element positioned P PE; Big.

2 is a longitudinal section through at the end ofthe exhaust."

fill

such apparatus. including a ventilator gratl ing and conduit, a flexible riser conduit, a

suction element operated by the movement;

oi the exhaust gases of the automobile engine and a spring-pressed valve normally retained in closed position but operable to I open by the suction of said suction element; Fig. 3 is a frontview of the ventilating grating, shutter and conduit preferabl included within improved apparatus; an

Fig.4 is a view in side elevation of an engine exhaust showing in section; my suc-i tion elementattachedintermediate the ends 1 7 v Referring now to these drawings, which I illustrate a preferred embodiment of my in p y i vention, 1 indicates a closed automobile, the

of the exhaust pipe" interior 1? of which it is desired to ventilate, said automobile being r'ovided with haust conduit or pipe 3.

isf as illustrated, connected to the terminal 0 I the usual explosive engine "2 aving an..ex

the exhaust pipe 3 atlthe rear of the mufiler 5 in such a manner as to be operable by the movement or How of gases I through the said exhaust conduit or ipe' 3 to create in the bod -portion 4 of said element 4 a suction w ich may be applied or commun'icatedin any suitable manner; to

the interior compartment 1 of the said closed car 1. In the referred 'form' illus-- trated in Figs. 1 an 2, the suction B1B.

ment 4 is mounted at the terminal end of 'i the exhaust pipe and has .azconnection, as a shown,'by means of-a flexible-tube .6 with V a ventilating opening adjacent to the top ofzone of the'walls of thecarr *An'y suit- .1 'able form of ventilatin device may be usai,

as for example, a simp 'e grating'or it may,

as shown, comprise a grating member 7 provided with openings 8 wholly or par 'tially I closable by means'of a shutter or cover 9 which,' as shown, is operated to close over the grating opemngs by a button or knurled knob 10. -v V In the preferred form shown, a ventilating opening 11 'is made in the lining of one wall-of the car body and a flattened ventilator conduit 12 is placed in registration no i ' iu by the suction. created 'in thesuction eletained in close .i 1 element which is in all respects similar tothe element shown in Fig. 2, is interposed in the I conduit close tothe engine and at the op-.

"with the inner side thereof, while a-grating 7 and shutter 9- are connected thereto "from the outside by means of screws 7*,or like fastening devices, and the-ventilator con-' 5 duit is connected by suitable connections 13 i and a flexible'tube'dto the suctionjelement.

' In the preferred form .shown, however, I interpose in the path' of the'suc preferably; tion and etween the ventilator grating and suction element. a valve 114' operable to open normally closed axidreposition by .means of a spring 15.1 f

Inthe form shown ment and being" in 4;, thesuction posite side'offthe mufiler 5 so as to procure the. benefit of the more rapid movement of the gases before the same reach the muffler the construction is simi ar to that described o and sho'wn in 'Figs. 1 and 2. r v A ---The construction of the suction element in both cases is'similar."-Each of such suetion-elements', as shown, comprises a shell or casing 4; having an enlarged bod portion 4 and fa contracted suction channe 4* 'pref erably surrounding ,the I riphery of the gas-ejecting e'nd ofthe ex aust pipe or conduit 3 andconimunicatin with the flowing stream of gases passing t "rough and being ejected from the end of the conduit orexhaust pi e, that the outward movement a of the ex aust gases will induce a movement I through the channel from the enlarged body and are retarded'thereb In other respects portion of the suction element and thus cause or create a suctionin the cdnduits'to which said suction element is connected In' the embodiment shown in Fig T- Q it will-be obvious that so soon as a suction is created within the valve casin 16, the

valve 14 will be sucked downward y against the action of the spring-so as to 'open..the channel and permit the suction of air through the seat and flexible tube from and through the ventilating device to the interior of the car 1.

' Having described my claim:- I .v

The combination withan automobile having an engine from which leads an exhaust conduit, and'a body compartment independinvention, I

ent of and removed from the engine, of. a

ventilatingelement, said valve being normally retained in closed position but oper-- able to open said induced air suction to."

ventilate the bodyflcompartment.

In witness whereof, I have signed my name to the foregoing specification.

' JULIUS H. LUTZ; 

